Passive motion sensing RFID tag

Abstract

The utility model discloses a passive motion perception RFID tag, which comprises an RFID tag chip, a vibration sensor, an RFID tag antenna and tag bottom paper, the vibration sensor is connected with the RFID tag chip, the vibration sensor can monitor the motion state of an object attached with the tag in real time, and the RFID tag antenna is connected with the RFID tag chip. The RFID tag chip is used for receiving state information of the RFID tag, mapping the state information to the radio frequency port of the RFID tag through the RFID tag chip, and mapping the output signal of the vibration sensor to the radio frequency port of the RFID tag, so that the reader-writer can identify the vibration state of the tag, only the moving tag is identified, the tag in a static state can be effectively filtered, and the reliability of the reader-writer is improved. And the warehouse-in and warehouse-out identification accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency identification technology, specifically to a passive motion sensing RFID tag. Background Technology

[0002] In modern warehousing and logistics management, RFID tags are widely used for the automatic identification and tracking of goods. However, current RFID tags have many shortcomings in practical applications, especially in the identification process at inbound and outbound channels, mainly facing the following problems:

[0003] 1. Tag Interference: Due to the close proximity between the inbound and outbound channels and the storage area, when RFID readers read tags, in addition to identifying the materials passing through the channel, they are also prone to misreading other stationary tags nearby, leading to data confusion and thus affecting the overall efficiency of warehouse management.

[0004] 2. Tag Missing Reads: Based on the problem in 1, in order to avoid reading other irrelevant tags, the power of the readers in the inbound and outbound channels cannot be turned up too high, which causes some tags passing through the inbound and outbound channels to be unable to be identified normally, resulting in RFID missing readings.

[0005] III. Limitations of Active Tags: Although the use of active RFID tags can reduce interference to some extent, their high cost and the limitation of battery life pose potential risks in long-term use, especially in large-scale warehousing environments, where the cost and complexity of maintenance and battery replacement are particularly prominent.

[0006] Therefore, there is an urgent need for a new type of passive motion-sensing RFID tag to effectively solve the above problems and achieve more efficient and accurate material management. Utility Model Content

[0007] To overcome the shortcomings of the prior art, this utility model provides a passive motion-sensing RFID tag. By connecting the RFID tag chip to a vibration sensor, the movement state of the object with the tag attached can be detected in real time, and the state information is mapped to the radio frequency port of the RFID tag, ensuring that only moving tags are identified. This effectively filters out stationary tags and improves the accuracy of inbound and outbound identification.

[0008] Technical solution

[0009] A passive motion-sensing RFID tag includes an RFID tag chip, a vibration sensor, an RFID tag antenna, and a tag backing paper. The vibration sensor is connected to the RFID tag chip and can monitor the motion state of the object with the tag attached in real time. The vibration sensor can also map the motion state information to the radio frequency port of the RFID tag through the RFID tag chip.

[0010] Furthermore, the RFID tag chip includes a state mapping module, which can convert the motion state information from the vibration sensor into a signal that can be correctly recognized by the RFID reader and mapped to a certain byte in the EPC area of ​​the RFID tag, but is not limited to the EPC area.

[0011] Furthermore, the RFID tag chip and the RFID tag antenna together form the RFID tag body. The RFID tag antenna is used to send and receive RFID signals, ensuring that the tag can communicate effectively with the reader and improving the stability and accuracy of data transmission.

[0012] Furthermore, the vibration sensor can monitor the motion state of the object to which the tag is attached in real time and convert the motion state information into an electrical signal, which is then provided to the RFID tag body.

[0013] Furthermore, the vibration sensor is connected to the RFID tag chip via a connecting wire for transmitting electrical signals.

[0014] Furthermore, the label backing paper is used to carry the RFID tag chip, the vibration sensor, and the RFID tag antenna. An adhesive layer is also attached to the label backing paper so that it can adhere to an object.

[0015] Furthermore, the vibration sensor employs micromechanical technology.

[0016] Beneficial effects

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] By mapping the output signal of the vibration sensor to the radio frequency port of the RFID tag, the reader can identify the vibration state of the tag, ensuring that only moving tags are identified. This effectively filters out stationary tags and improves the accuracy of inbound and outbound identification. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a passive motion-sensing RFID tag according to the present invention.

[0020] Attached icon number

[0021] 1. Label backing paper; 2. RFID tag chip; 3. RFID tag chip; 4. Vibration sensor. Detailed Implementation

[0022] To better illustrate the content of this utility model, the following description is provided in conjunction with the accompanying drawings and embodiments:

[0023] have Figure 1 As shown, this utility model discloses a passive motion sensing RFID tag, including an RFID tag chip 3, a vibration sensor 4, an RFID tag antenna 2, and a tag backing paper 1. The vibration sensor 4 is connected to the RFID tag chip 3. The vibration sensor 4 can monitor the motion state of the object with the tag attached in real time, and map the state information to the radio frequency port of the RFID tag through the RFID tag chip 3.

[0024] Furthermore, the RFID tag chip 3 includes a state mapping module, which can convert the motion state information from the vibration sensor 4 into a signal that can be correctly recognized by the RFID reader and mapped to a certain byte in the EPC area of ​​the RFID tag, but is not limited to the EPC area.

[0025] Furthermore, the RFID tag chip 3 and the RFID tag antenna 2 together form the RFID tag body. The RFID tag antenna 2 is used to send and receive RFID signals, ensuring that the tag can communicate effectively with the reader and improving the stability and accuracy of data transmission.

[0026] Furthermore, the vibration sensor 4 can monitor the motion state of the object to which the tag is attached in real time and convert the motion state information into an electrical signal, which is then provided to the RFID tag body.

[0027] Furthermore, the vibration sensor 4 is connected to the RFID tag chip 3 via a connecting wire for transmitting electrical signals.

[0028] Furthermore, the label backing paper 1 is used to carry the RFID tag chip 3, the vibration sensor 4 and the RFID tag antenna 2. The label backing paper 1 is also covered with an adhesive layer, which can adhere to the object.

[0029] Furthermore, the vibration sensor 4 employs micromechanical technology.

[0030] Specifically, in the RFID inbound and outbound channels, the reader can accurately distinguish between RFID tags that are entering and leaving the warehouse and filter out tags that are stationary. This design effectively removes abnormal tags, thereby improving the accuracy of material entry and exit, reducing the possibility of data confusion, and thus optimizing the warehouse management process. On the other hand, because the reader can filter out other stationary tags, the reader can operate at full power to avoid the problem of some tags being missed.

[0031] By combining advanced motion detection technology, this technology has successfully solved many shortcomings of traditional RFID tags in warehousing and logistics applications, and has broad application prospects and market value. With the continuous growth of the logistics industry's demand for intelligence and automation, this technology is expected to play an important role in future warehouse management, bringing enterprises higher efficiency and lower operating costs.

[0032] The tags can operate stably under different temperature and humidity conditions, are suitable for various warehousing environments, and are designed in accordance with international standards, making them compatible with a variety of brands and models of RFID readers.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the technical solutions of this utility model have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A passive motion-sensing RFID tag, characterized in that: It includes an RFID tag chip (3), a vibration sensor (4), an RFID tag antenna (2), and a tag backing paper (1). The vibration sensor (4) is connected to the RFID tag chip (3). The vibration sensor (4) monitors the motion state of the object with the tag attached in real time and maps the state information to the radio frequency port of the RFID tag through the RFID tag chip (3).

2. The passive motion-sensing RFID tag according to claim 1, characterized in that: The RFID tag chip (3) includes a state mapping module, which can convert motion state information from the vibration sensor (4) into a signal that can be correctly recognized by the RFID reader and mapped to a certain byte in the EPC area of ​​the RFID tag, but not limited to the EPC area.

3. A passive motion-sensing RFID tag according to claim 1, characterized in that: The RFID tag chip (3) and the RFID tag antenna (2) together form the RFID tag body. The RFID tag antenna (2) is used to send and receive RFID signals to ensure that the tag can communicate effectively with the reader and improve the stability and accuracy of data transmission.

4. A passive motion-sensing RFID tag according to claim 3, characterized in that: The vibration sensor (4) monitors the motion state of the object to which the tag is attached in real time and converts the motion state information into an electrical signal, which is then provided to the RFID tag body.

5. A passive motion-sensing RFID tag according to claim 1, characterized in that: The vibration sensor (4) is connected to the RFID tag chip (3) via a connecting line.

6. A passive motion-sensing RFID tag according to any one of claims 1-5, characterized in that: The label backing paper (1) is used to carry the RFID tag chip (3), the vibration sensor (4) and the RFID tag antenna (2), and an adhesive layer is also attached to the label backing paper (1).

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